Investments: Schedule of Available for sale Securities in Continuous Unrealized Loss positions (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Fair Value
Less Than 12 Months	$ 42,846	$ 1,716
12 Months or Longer	35,668	44,038
Total	78,514	45,754
Gross Unrealized Loss
Less Than 12 Months	(598)	(11)
12 Months or Longer	(606)	(803)
Total	(1,204)	(814)
Mortgage-backed investments, Fannie Mae
Fair Value
Less Than 12 Months	2,968	0
12 Months or Longer	0	0
Total	2,968	0
Gross Unrealized Loss
Less Than 12 Months	(1)	0
12 Months or Longer	0	0
Total	(1)	0
Mortgage-backed investments, Freddie Mac
Fair Value
Less Than 12 Months	8,037	0
12 Months or Longer	0	0
Total	8,037	0
Gross Unrealized Loss
Less Than 12 Months	(273)	0
12 Months or Longer	0	0
Total	(273)	0
Mortgage backed investments Ginnie Mae
Fair Value
Less Than 12 Months	12,249	0
12 Months or Longer	0	1,311
Total	12,249	1,311
Gross Unrealized Loss
Less Than 12 Months	(97)	0
12 Months or Longer	0	(3)
Total	(97)	(3)
Other
Fair Value
Less Than 12 Months	0	0
12 Months or Longer	5,991	5,942
Total	5,991	5,942
Gross Unrealized Loss
Less Than 12 Months	0	0
12 Months or Longer	(10)	(62)
Total	(10)	(62)
Municipal bonds
Fair Value
Less Than 12 Months	15,852	0
12 Months or Longer	0	0
Total	15,852	0
Gross Unrealized Loss
Less Than 12 Months	(197)	0
12 Months or Longer	0	0
Total	(197)	0
U.S. Government agencies
Fair Value
Less Than 12 Months	2,749	1,716
12 Months or Longer	23,868	30,991
Total	26,617	32,707
Gross Unrealized Loss
Less Than 12 Months	(20)	(11)
12 Months or Longer	(399)	(526)
Total	(419)	(537)
Corporate bonds
Fair Value
Less Than 12 Months	991	0
12 Months or Longer	5,809	5,794
Total	6,800	5,794
Gross Unrealized Loss
Less Than 12 Months	(10)	0
12 Months or Longer	(197)	(212)
Total	$ (207)	$ (212)